Every working dog breed has a different purpose so how can you compare them? You cannot. It depends on your needs for a working dog. Educate yourself on the different working breeds.
Feeding raw.
The best small family dog is the Bichon Frise it's small and fit for family life. Take it from the owner of two Bichon Frise.
A beagle
It depends on what you like :)
Not recommended as a family pet or for the first time dog owner. This breed is best kept for working and makes an excellent guard dog, mainly due to the fact that it will attack strangers and other dogs.
Poodle
A beagle
a cockapoo
A PUG is generally a best dog
dachshund
Of course, It is Baby Labradors.